摘要
目的通过对2014-2016年江阴市乙型流感病毒的流行病学特征进行分析,为制定乙型流感病毒防控策略提供依据。方法收集江阴市2014-2016年流感监测哨点医院上报的流感样病例数据及咽拭子标本,运用实时荧光定量PCR(Real-time PCR)进行乙型流感病毒检测。结果 2014-2016年共采集流感样病例咽拭子标本1 575份,其中乙型流感病毒阳性146份,阳性率为9. 27%。男、女阳性率分别为9. 98%和8. 27%,差异无统计学意义(χ^2=5. 22,P> 0. 05)。5~14岁组阳性率最高(14. 68%),0~4岁组阳性率最低(5. 99%)。乙型流感病毒感染具有明显的季节性,主要集中发生于冬春季。不同医院间乙型流感病毒阳性率差异无统计学意义(P>0. 05)。结论江阴市乙型流感病毒阳性率逐年增加,5~14岁青少年为高危人群,应继续加强监测,及时发现病毒变异方向,并加强高危人群的流感疫苗接种。
Objective To analyze the epidemiological characteristics of influenza B in Jiangyin City from 2014 to 2016,so as to provide basis for formulating prevention and control strategies of influenza B virus. Methods Data of influenza-like cases and pharynx specimens were collected from the influenza surveillance in sentinel hospitals in Jiangyin City from 2014 to 2016. Real-time PCR was used to detect influenza B virus. Results In 2014-2016,a total of 1 575 pharynx specimens were collected from influenza-like cases,of which 146 were positive for influenza B virus,with a positive rate of 9. 27%. The positive rates of males and females were 9. 98% and 8. 27%,respectively,and the difference was not statistically significant(χ^2= 5. 22,P >0. 05). The positive rate was the highest in the 5 ~ 14 years old group(14. 68%),and the lowest in the 0 ~ 4 years old group(5. 99%). Influenza B virus infection has obvious seasonality,mainly concentrated in winter and spring. There was no significant difference in the positive rate of influenza B virus between different hospitals(P > 0. 05). Conclusion The positive rate of influenza B virus in Jiangyin City has increased year by year. The high-risk groups of 5 ~ 14 year old should continue to strengthen monitoring,detect the direction of virus mutation in time,and strengthen influenza vaccination for high-risk groups.
作者
刘晓骏
张宏宾
姚建香
LIU Xiaojun;ZHANG Hongbin;YAO Jianxiang(Jiangyin Center for Disease Control and Prevention,Jiangsu214434,China)
出处
《医学动物防制》
2019年第10期1003-1005,共3页
Journal of Medical Pest Control
基金
国家科技重大专项课题(2017ZX10103008)
无锡市卫生计生委科研项目(Q201737)
江阴市卫计委指导性科研项目(G201704)
关键词
乙型流感病毒
流行特征
病原监测
Influenza B virus
Epidemiological characteristics
Pathogen monitoring
